Tell me what you know about sperm? everthing besides getting pregnant i know tha!
Question: They are light-sensitive. If you donate, the fresh sample has to be put in the dark or light quickly kills them.
You get roughly 3,000-5,000 per teaspoon of fluid.
It was believed that pre-seminal fluid from a guy contained a few sperm which is why the "pull out just before the orgasm" method does not work well. But someone here cited a newer study that said researchers could not find any in the pre-seminal fluid.
Fertility studies literally put a sample under a microscope and count the 'swimmers' in a given area. Some men were judged as having low sperm count or low 'motility' (only a few swimmers).
But one day a researcher looking at a low-motility sample was bored and added a drop from another man just to see what would happen. When the 2 samples came together, he was shocked to see furious activity. All the sperm that were just hanging around woke up and began attacking the sperm from the other sample by blocking them.
(This raises some interesting biological issues. The obvious one is that biology expects women to have multiple partners and sperm have developed counter-measures as a result. Sperm that was considered 'lazy' are actually blockers.)
The comparison to American Football is left to the reader.
Answers: They are light-sensitive. If you donate, the fresh sample has to be put in the dark or light quickly kills them.
You get roughly 3,000-5,000 per teaspoon of fluid.
It was believed that pre-seminal fluid from a guy contained a few sperm which is why the "pull out just before the orgasm" method does not work well. But someone here cited a newer study that said researchers could not find any in the pre-seminal fluid.
Fertility studies literally put a sample under a microscope and count the 'swimmers' in a given area. Some men were judged as having low sperm count or low 'motility' (only a few swimmers).
But one day a researcher looking at a low-motility sample was bored and added a drop from another man just to see what would happen. When the 2 samples came together, he was shocked to see furious activity. All the sperm that were just hanging around woke up and began attacking the sperm from the other sample by blocking them.
(This raises some interesting biological issues. The obvious one is that biology expects women to have multiple partners and sperm have developed counter-measures as a result. Sperm that was considered 'lazy' are actually blockers.)
The comparison to American Football is left to the reader.
It's a diploid cell.
My ex tells me that it tastes like sour milk.
like scientifically? I know that recent studies have found it to be an anti-depressant, but only if it is shot off in your vagina. It is full of proteins, calcium, and vitamins and minerals, and can actually help whiten teeth. It only holds either 1 X or 1 Y chromosome, and needs the X chromosome from a woman's egg in order to produce a child.
sperm = a nice salad topping
The term sperm is derived from the word spermos (meaning "seed") and refers to the male reproductive cells. Sperm cells are the smaller gametes involved in fertilization in anisogamy and oogamy. In these types of sexual reproduction, there is a marked difference in the size of the gametes with the smaller one being termed the "male" or sperm cell. A uniflagellar sperm cell that is motile is also referred to as spermatozoon, whereas a non-motile sperm cell is referred to as spermatium. Sperm cells cannot divide and have a limited life span, but they can fuse with egg cells during fertilization to form a totipotent zygote with the potential to develop into a new organism.
The spermatozoa of animals are produced through spermatogenesis inside the male gonads (testicles) through meiosis. Sperm cells in algal and many plant gametophytes are produced in male gametangia (antheridia) through mitosis. In flowering plants, sperm nuclei are produced inside pollen.